\documentclass{standalone}

\usepackage{graphicx}
\usepackage{tikz}
\usepackage{siunitx}

\newcommand{\pscore}[1]{\score{PP}{#1}}
\newcommand{\cscore}[1]{\score{CH}{#1}}

\sisetup{round-mode = places}% in preamble    

\newcommand{\score}[2]{
\begin{tikzpicture}
\draw (0,0)--(1,0);
\filldraw[black] (#2,0) circle (0.05);
\node at (-0.2,0) {\tiny #1};
\node at (0.5,-0.2) {\tiny \num[round-precision=2]{#2}};
\end{tikzpicture}
}

\begin{document}
\begin{tabular}{cccccc}
\raisebox{-.5\height}{\includegraphics[width=2.2cm]{../results/temp/district_2103_500k.png}} &
\raisebox{-.5\height}{\includegraphics[width=2.2cm]{../results/temp/district_2103_5m.png}} &
\raisebox{-.5\height}{\includegraphics[width=2.2cm]{../results/temp/district_2103_20m.png}} &
\raisebox{-.5\height}{\includegraphics[width=2.2cm]{../results/temp/district_2201_500k.png}} &
\raisebox{-.5\height}{\includegraphics[width=2.2cm]{../results/temp/district_2201_5m.png}} &
\raisebox{-.5\height}{\includegraphics[width=2.2cm]{../results/temp/district_2201_20m.png}} \\
     500k         &        5m         &       20m         &      500k         &        5m         &       20m \\
\pscore{0.379992} & \pscore{0.476327} & \pscore{0.54611}  & \pscore{0.032985} & \pscore{0.0553361} & \pscore{0.150796} \\
\cscore{0.780833} & \cscore{0.828378} & \cscore{0.789624} & \cscore{0.575963} & \cscore{0.598142}  & \cscore{0.6684} \\
                  & Kentucky 03       &                   &                   & Louisiana 01       &
\end{tabular}

\end{document}